| Qiagen North American Holdings, Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20100160619 | COMPOSITIONS AND METHODS FOR USING A SOLID SUPPORT TO PURIFY DNA - Reagents, methods and kits for the purification of DNA from biological materials are provided. | 06-24-2010 |
| 20090246859 | Methods and Compositions for Purification of Nucleic Acid from a Host Cell - Methods and compositions are provided for gently lysing and solubilizing cells. Methods and compositions are further provided for quickly purifying high quality low molecular weight nucleic acid from host cells. Target cells are treated with a pre-chilled lysis solution having a zwitterionic detergent, for example n-Dodecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate, and a brief room-temperature incubation. Where nucleic acid purification is required, the lysis solution-treated cells are contacted with a nucleic acid capture matrix having an average pore size of at least about 1 μm. | 10-01-2009 |
| 20090017531 | METHOD FOR ISOLATING PLASMIDS FROM SUSPENDED BACTERIAL OR YEAST CELLS - A method for isolating plasmids from suspended bacterial or yeast cells using a filter matrix, at least one lysing substance being added to the suspension and predamaging or completely lysing the predominant portion of the suspended cells, at least one conformation-altering substance being added to the suspension to alter the conformation of the plasmids to be isolated so as to promote retention of the cell components in or at the filter matrix. The suspension is thereupon moved through the filter matrix and the cells if not yet lysed then being lysed to completion upon contact with the filter matrix and the released plasmids being retained in or at the filter matrix. | 01-15-2009 |
